Joint Modeling of DFIG-Based Wind Turbines for Structural Load Characteristics Analysis

To study the structural loads of wind turbines under grid faults, this paper introduces the concept of co-simulation in the load characteristics analysis of wind turbines under voltage dips and a complete model including both mechanical and electrical parts is constructed. A combination of different simulation packages is used to model the electrical and mechanical aspects of a wind turbine respectively. To demonstrate the co-simulation modeling method can be applied to analyze wind turbine structures, a reference model based on the industry-accepted wind turbine analysis code is also established. A side-by-side comparison of response predictions is further performed between co-simulation strategy and industry-accepted wind turbine analysis code.